Unser didn't win in the PC27, but did record podiums despite tyre and engine deficit. Here he is pictured after placing third at Milwaukee in 1998
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Unser Jr elected not to race the PC27 at Nazareth in 1998 after team-mate Ribeiro's enormous crash
Photo by: Motorsport Images
The PC27 isn't remembered as a success story, but it could have been under different circumstances
Photo by: Motorsport Images
Source: Autosport